- (A) Austenite to martensite
- (B) Martensite to austenite
- (C) Ferrite to austenite
- (D) Austenite to ferrite
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) Unreliable spring back
- (B) low spring back
- (C) Minimal spring back
- (D) None of the above
- (A) Silica
- (B) Quartz
- (C) Cristobolite
- (D) Calcium sulphate monohydrate
- (A) Carbon
- (B) Molybdenum
- (C) Chromium
- (D) Nickel
- (A) Increasing the mould metal temperature difference
- (B) Increasing the flow of molten metal
- (C) Flaring the point of the sprue attachment
- (D) All of the above
- (A) Surface hardness
- (B) Strength
- (C) Proportion limit
- (D) Corrosion resistance
- (A) Facilitate venting of the mold
- (B) Retard the heating of the investment
- (C) Permit expansion of the world
- (D) All of the above
- (A) Improper casting pressure
- (B) Improper heating of the investment
- (C) Improper angulation of sprue
- (D) Improper wetting of the wax pattern by the investment
- (A) Attached impurities on undersurface of casting
- (B) Hot spot
- (C) No rapid cooling
- (D) Inadequate melting temperature
- (A) Silver fluorides
- (B) Silver cyanide
- (C) Silver bromide
- (D) Silver iodide
